What is the main constituent of the atmosphere at ground level?
(A) Water
(B) Oxygen
(C) Nitrogen
(D) Carbon dioxide
- HSC - SSCE Chemistry - Question 4 - 2008 - Paper 1
Question 4
What is the main constituent of the atmosphere at ground level?
(A) Water
(B) Oxygen
(C) Nitrogen
(D) Carbon dioxide
Worked Solution & Example Answer:What is the main constituent of the atmosphere at ground level?
(A) Water
(B) Oxygen
(C) Nitrogen
(D) Carbon dioxide
- HSC - SSCE Chemistry - Question 4 - 2008 - Paper 1
Step 1
Identify the main constituent of the atmosphere at ground level
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Answer
The main constituent of the atmosphere at ground level is Nitrogen. It makes up approximately 78% of the Earth's atmosphere, while Oxygen accounts for about 21%. Other components, such as Argon and Carbon Dioxide, comprise much smaller percentages.